-21=5x-4

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Solution for -21=5x-4 equation:


Simplifying
-21 = 5x + -4

Reorder the terms:
-21 = -4 + 5x

Solving
-21 = -4 + 5x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-5x' to each side of the equation.
-21 + -5x = -4 + 5x + -5x

Combine like terms: 5x + -5x = 0
-21 + -5x = -4 + 0
-21 + -5x = -4

Add '21' to each side of the equation.
-21 + 21 + -5x = -4 + 21

Combine like terms: -21 + 21 = 0
0 + -5x = -4 + 21
-5x = -4 + 21

Combine like terms: -4 + 21 = 17
-5x = 17

Divide each side by '-5'.
x = -3.4

Simplifying
x = -3.4

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